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Marquise|Lab Grown|IGI

4.63ct E VS1 Marquise Lab Grown Diamond

ID • E/VS1 • IGI LG844621251

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG844621251

Diamond specifications and retailer prices

From £581 GBP
$779 USD
As of November 1, 2026
Save £3,508 GBP (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £7,829 GBP at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 4.63ct lab-grown marquise diamond

This 4.63ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844621251 or 844621251. Listed at 4 retailers as of November 1, 2026, with a 603% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.63
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844621251
Dimensions18.00 × 8.89 × 5.55 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.00 mm8.89 mm4.63 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844621251
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £7,829 GBP|Low: £581 GBP|High: £7,829 GBP|Avg: £3,615 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3£581 GBP
Retailer 2£997 GBP
Retailer 4£4,090 GBP
Brilliant Earth£7,829 GBP

20 data points across 4 retailers

4 retailers£581 GBP to £4,090 GBP

A
Cheapest Retailer
-
£581 GBP
$779 USD
Final sale: no returns
A
Retailer 2
-
£997 GBP
View
B
Retailer 3
-
£4,090 GBP
$5,480 USD
View
Most Expensive
Brilliant Earth
21829846A · Oct 24
£7,829 GBP
$10,490 USD
View
Price last confirmed 8 days ago
3 more retailers have this diamond
Prices start from £581 GBPSave up to £3,508 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.63ct Marquise
£581 GBP